Process of producing metalline films.



' No. 731,906. l PATENTED JUNE 23, 1903-.

A. HUGK, L. FISCHER, H. AHRLB & E. SGHMIEDER.

PROCESS 0F PRODUGING METALLINE FILMS.

APPLICATION FILED DEU. 9. 1902.

N0 MODEL.`

TR: Nonms rlfsns co. pugni-uma.. wAsmNbToN, nv c.

y 35 fully clean the saine.

` 45 nish or japambut preferably japan.

v i, .UNiTED *l STATESV Patented J' une Q3, 1903.

PATENT `@inercia l AUGUST HUOK, LUDWIG FISCHER, HERMANN AHRLE, AND EMILSCHMIEDER, OF FRANKFORTONTHEMAIN, GERMANY, ASSIGNORS TO THEMETAL-LINE-PLATTEN-GESELLSCHAFT,M. B. H., OF FRANKEORT-ONTHE-MAIN,

PRSSIA, GERMANY.

`PROC`ESS OF PRODUCNG NIETLLNE FILMS.

i SPECIFICATION forming part of Letters Patent No. 731,906, dated J' une2S, 1903.

i Application led December 9,1902. Serial No. 134,5 70. (No specimens.)

To all whoml it may concern: Be it known that we, AUGUST HUCK, privategentleman, LUDWIG FISCHER, private gentleman, HERMANN AHnLE, merchant,and

y l 5 EMIL SCHMIEDER, photographer, subjects of the King of-Prussia,Emperor of Germany, residing at Frankfort-onthe-Main, in the Kingdom ofPrussia, Germany, have inventedcertain new and useful Improvements in loProcesses of Producing Metalline Films; and

y we do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

Our invention relates to improvements in processes of producingmetalline films,and is a p speciflcimprovement upon Patent No.694,227,

dated February 25, 1902. zo The object of' our invention is to produce aieXible metalline film either with a backing l loi paper` or some otherexible material or Without any backing at all. The films produced areperfectly flexible and may beat- 2 5 tached in any desired form toeither flexible or rigid bodies. Such films with the pictures printedthereon, which, as is well known, are homogeneously combined with alayer of varnish mixed` with bronze-powder, can be used` 1 3o for allconceivable decorative purposes, as onA the walls of a room, forexample.

`In carrying our `invention into edect We take a rigid body-such as aplateof Wood, glass, porcelain, metal, or the like-and care Over thisplate is then poured a layer of celluloid varnish or some similarvarnish, such asycelloidine or caoutchouc. The plate isjthen coated witha thin layer of tallow, vaseline, glycerin, or any suit- 4o able fat orgrease. A thinlayer of a solution of collodion or caoutchouc is then putover the coating of fat and the whole allowed to dry. After all theselayers are dry they are coated with a suitable varnish, such as asphaltvarcoating is then allowed to dry, after which it is smoothed andpolished. We then take a solution containing the `following ingredients,

' tel.

This,

by Weight: sixteen parts of albumen, nine partsof honey, andtwenty-'three parts of Wa- These materials are thoroughly mixed togetherand carefully filtered. The plate covered with the layers alreadydescribed is then coated with this filtered solution, which penetratesinto the fine pores of the varnish, thus effecting a thoroughcombination bey tween the solution and the varnish. Before the solutionhas become perfectly dry the metallizing or bronzing should be effected.

This is done as follows: The fine dry metallic powder is applied with atine brush to the slightly-moist surface of the plate, the applicationbeing continued until a uniform metallic layer is produced which has ametallic luster and is thoroughly combined with the coating formed onthe layer of varnish bythe solution. In this manner by the introductionof fine metallic particles into the solution and the varnish coating,rthe metallic powder, the solution, and the varnish form a thoroughlyhomogeneous layer. This is then allowed to dry and alcohol is pouredover it, which by its evaporation hardens the layer. i In this Way ametalline lm is formed upon the plate which acts as a base. When it isdesired to use this lm, it may be easily peeled `olf from the coating offat or the layer of celloidinevarnish,because the succeeding layers,especially japan, do not combine with the layer of fat or the layer ofcelluloid varnish.

As modifications of our process it should be noted that in some cases acoating of fat or grease alone without any preceding coat- `ing ofvarnish on the plate maybe sufficient.

gelatin or equivalent substance which is between the base-plate and themetalline film, after which the film may be easily and completelystripped from the base. In some cases it is desired to produce thesefilms on a paper or other flexible base, in which case of course themetallic film is not stripped from the base, but is firmly connectedtherewith. In this case the paper or flexible base is first madeimpermeable by soaking it in or applying to it a solution of caoutchoucin chloroform, after which successive layers ot' japan, a solution ofalbumen, honey, and water, and metallic powder are applied and the wholetreated with alcohol, as already described.

These metalline films may be produced of any suitable size andthickness.

In the accompanying drawings, Figure l represents the base with themetalline film formed thereon, the latter being also shown in dottedlines as it appears when the operation of stripping it from thebase-plate is begun. Fig. 2 shows a cross-section'of a portion of thesame considerably enlarged. Figs. 3, 4., and show cross-sections ofmoditications of portions of our invention considerably enlarged.

ct represents the rigid base-plate; b, the

.layer of caoutchouc or equivalent material;

c, the layer of fat or grease; d', the second layer of caoutchouc orequivalent material; e, the layer of japan or equivalent material, andfthe metallic powder.

In Fig. 4f, g represents a layer ot' gelatin, albumen, or some similarsubstance soluble in water.

In Fig. 5, h represents a base of paper or other flexible material.

Having thusdescribed our invention, what We claim as new, and desire tosecure by Letters Patent of the United States, is-

' 1. T-he process of producing metalline films,

varnish, a softening solution and fine metalp lic powder in succession,substantially as described.

3. The process of producing metallinelilms, which consists in applyingto a rigid plate a layer of caoutchouc, a layer of grease, a layer ofcaoutchouc, a layer of varnish, a softening solution and metallic powderin succession, substantially as described.

4. The process of producing metalline films, which consists in applyingto a rigid base a layer ot' caoutchouc, a layer of grease, a layer ofcaoutchouc, a layer of japan, a solution containing albumen, honey andWater and metallic powder in succession, substantially as described.

5. The process of producing metalline films, which consists in applyingto a rigid base a layer of caoutchouc, a layer of grease, a layer ofcaoutchouc, a layer of japan, then applying a solution composed ofalbumen, honey and water, then while still wet, brushing a dry metallicpowder over the surface thereof,

allowing it to dry, applying alcohol thereto,

and finally stripping the film from the plate, substantially asdescribed.

In testimony whereof we affix our signatures in presence of twoWitnesses.

AUGUST HUCK.

LUDWIG FISCHER. HERMANN AHRLE. EMIL SCHMIEDER.

Witnesses:

JEAN GRUND, CARL GRUND.

